Transport in Porous Media最新文献_第7页

Influence of Pore Network Parameters on Hygric Property Prediction for Porous Building Materials 孔隙网络参数对多孔建筑材料湿性能预测的影响

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-04-08 DOI: 10.1007/s11242-024-02076-x

Chengnan Shi, Jeroen Soete, Hans Janssen

{"title":"Influence of Pore Network Parameters on Hygric Property Prediction for Porous Building Materials","authors":"Chengnan Shi, Jeroen Soete, Hans Janssen","doi":"10.1007/s11242-024-02076-x","DOIUrl":"10.1007/s11242-024-02076-x","url":null,"abstract":"<p>Hygric pore network modelling, which characterises the macroscopic moisture storage and transport properties by simulating the microscopic storage and transport of moisture in the pore elements of the pore network, is a novel method to characterise the hygric properties of building materials. To analyse, verify and/or compare pore networks, a wide array of parameters (both geometrical and topological) exists. This paper aims to comprehensively investigate these parameters, targeting their impacts on the moisture retention and permeability curves of porous materials. The maximum-inscribed-ball method is employed to extract the pore networks of three real porous materials, which are further scaled down to provide three complementary virtual pore networks in order to cover a wider spectrum of pore sizes. Subsequently, these pore networks are modified to obtain variations in the parameter distributions, and then, a sensitivity analysis is implemented to determine the impact of the pore network parameters on the hygric property prediction. The results indicate that the moisture retention curve is most related to the radius and volume distributions of pore bodies and throats, whilst the distribution of coordination number is the most crucial parameter for the moisture permeability curve. The conclusions are further confirmed through an improved stochastic pore network generation algorithm. With preserved radius and volume distributions for pore bodies and pore throats, the moisture retention curve is predicted accurately. Adding information on the coordination number distribution to the algorithm then ensures the successful prediction of the moisture permeability curve.</p>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"151 6","pages":"1333 - 1361"},"PeriodicalIF":2.7,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140561903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magneto-Permeability Effect in Ferrofluid Flow Through Porous Media Studied via Multiparticle Collision Dynamics 通过多粒子碰撞动力学研究铁流体流经多孔介质时的磁渗透效应

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-04-06 DOI: 10.1007/s11242-024-02077-w

Patrick Ilg

{"title":"Magneto-Permeability Effect in Ferrofluid Flow Through Porous Media Studied via Multiparticle Collision Dynamics","authors":"Patrick Ilg","doi":"10.1007/s11242-024-02077-w","DOIUrl":"10.1007/s11242-024-02077-w","url":null,"abstract":"<div><p>As more and more promising applications of magnetic nanoparticles in complicated environments are explored, their flow properties in porous media are of increasing interest. We here propose a hybrid approach based on the multiparticle collision dynamics method extended to porous media via friction forces and coupled with Brownian dynamics simulations of the rotational motion of magnetic nanoparticles’ magnetic moment. We simulate flow in planar channels homogeneously filled with a porous medium and verify our implementation by reproducing the analytical velocity profile of the Darcy–Brinkman model in the non-magnetic case. In the presence of an externally applied magnetic field, the non-equilibrium magnetization and friction forces lead to field-dependent velocity profiles that result in effective, field-dependent permeabilities. We provide a theoretical expression for this magneto-permeability effect in analogy with the magneto-viscous effect. Finally, we study the flow through planar channels, where only the walls are covered with a porous medium. We find a smooth crossover from the Poiseuille profile in the center of the channel to Brinkman–Darcy flow in the porous layers. We propose a simple estimate of the thickness of the porous layer based on the flow rate and maximum flow velocity.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"151 6","pages":"1363 - 1380"},"PeriodicalIF":2.7,"publicationDate":"2024-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11242-024-02077-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140561363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Berman Slip-Flow in a Parallel-Sided Channel with Porous Boundaries 关于多孔边界平行边水道中的伯曼滑移流

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-04-05 DOI: 10.1007/s11242-024-02078-9

Eugen Magyari

引用次数: 0

Design of Biomimetic Porous Scaffolds for Bone Tissue Engineering 设计用于骨组织工程的仿生多孔支架

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-04-03 DOI: 10.1007/s11242-024-02082-z

Rajdeep Paul, Masud Rana, Abhisek Gupta, Tirtharaj Banerjee, Santanu Kumar Karmakar, Amit Roy Chowdhury

{"title":"Design of Biomimetic Porous Scaffolds for Bone Tissue Engineering","authors":"Rajdeep Paul, Masud Rana, Abhisek Gupta, Tirtharaj Banerjee, Santanu Kumar Karmakar, Amit Roy Chowdhury","doi":"10.1007/s11242-024-02082-z","DOIUrl":"10.1007/s11242-024-02082-z","url":null,"abstract":"<div><p>The fluid flow dynamics on the porous scaffolds and their static responses on the adjacent bone are very crucial parameters for bone adaptation. Researchers are trying to develop different algorithms to design biomimetic porous scaffolds incorporating bone tissue engineering. In this present work, three types of biomimetic heterogeneous porous scaffolds (HPS) were designed with the help of the Voronoi tessellation method and Swarm Intelligence and those were analysed under fluid perfusion as well as under static loading conditions. In computational fluid dynamics (CFD) analysis, the wall shear stress (WSS) and the permeability of the porous scaffolds were compared to the natural trabecular bone to understand their hydrodynamic responses. In static analysis, the von Mises stresses of the Ti<sub>6</sub>Al<sub>4</sub>V scaffolds were checked to ensure no-yield condition. The strain energy density (SED) distributions were also studied on the neighbouring bone region of the femur greater trochanter to obtain stress shielding (SS) patterns and these findings were then compared with the natural trabecular bone at the same anatomical region. The outcome parameters, viz. the induced WSS, von Mises stress, the permeability, and SS of the scaffold, are found to be independent of the scaffold architecture. The von Mises stress and permeability increased with an increase in porosities, while the induced WSS and SS nature of the scaffolds showed the reverse trend. The results showed that the HPS designed based on the Swarm Intelligence incorporating Physarum Polycephalum algorithm offered the least SS level of 41.096 for 75% porous HPS, which may be considered the most promising result. Considering all the parameters, the novel designed scaffold based on Swarm Intelligence showed the most trabecular bone mimicking nature compared to the other scaffolds.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"151 6","pages":"1453 - 1473"},"PeriodicalIF":2.7,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140561458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asymptotic-Poroelastic Model for Reservoir Compaction Damage Management in Fractured Oil Wells with Stress-Dependent Permeability 应力依赖渗透率的断裂油井储层压实损害管理渐近-透射弹性模型

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-04-01 DOI: 10.1007/s11242-024-02068-x

Fernando Bastos Fernandes, E. Gildin, Arthur M. B. Braga, Antônio Cláudio Soares

{"title":"Asymptotic-Poroelastic Model for Reservoir Compaction Damage Management in Fractured Oil Wells with Stress-Dependent Permeability","authors":"Fernando Bastos Fernandes, E. Gildin, Arthur M. B. Braga, Antônio Cláudio Soares","doi":"10.1007/s11242-024-02068-x","DOIUrl":"10.1007/s11242-024-02068-x","url":null,"abstract":"<div><p>The adequate management of the damage caused by effective permeability loss in stress-sensitive reservoirs becomes essential to productivity maintenance. This paper proposes a new unsteady-state poroelastic solution for the nonlinear hydraulic diffusivity equation in Biot’s effective stress-sensitive reservoirs fully penetrated by fractured oil wells. The hydraulic fracture in the proposed mathematical modeling is finite with tip effects and crosses the whole reservoir net pay. The NHDE is expanded in a first-order asymptotic series, and a poroelastic integro-differential solution coupled with a Green’s function (GF) is used to represent the source/sink term. A set of pore pressure and permeability data is used from geomechanical literature and transformed into effective stress through Biot’s equation. The effect of the Biot’s coefficient, overburden stress, oil flow rate, fracture’s tip, and proppant porosity arrangements is simulated. The results show that these parameters are essential to minimize formation damage. The accuracy, ease of implementation, and low computational costs constitute the main advantages of the model addressed in this paper. Hence, it may be a valuable and attractive mathematical tool to identify flow regimes, providing permeability loss control and supporting well–reservoir management. Hence, the proposed modeling becomes a useful and attractive tool for forecasting and monitoring permeability loss, oil flow rate specification, and reservoir history matching.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"151 6","pages":"1261 - 1293"},"PeriodicalIF":2.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140561906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Immiscible Two-Phase Flow in Porous Media: Effective Rheology in the Continuum Limit 多孔介质中的不溶两相流：连续极限中的有效流变学

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-03-25 DOI: 10.1007/s11242-024-02073-0

Subhadeep Roy, Santanu Sinha, Alex Hansen

{"title":"Immiscible Two-Phase Flow in Porous Media: Effective Rheology in the Continuum Limit","authors":"Subhadeep Roy, Santanu Sinha, Alex Hansen","doi":"10.1007/s11242-024-02073-0","DOIUrl":"10.1007/s11242-024-02073-0","url":null,"abstract":"<div><p>We consider steady-state immiscible and incompressible two-phase flow in porous media. It is becoming increasingly clear that there is a flow regime where the volumetric flow rate depends on the pressure gradient as a power law with an exponent larger than one. This occurs when the capillary forces and viscous forces compete. At higher flow rates, where the viscous forces dominate, the volumetric flow rate depends linearly on the pressure gradient. This means that there is a crossover pressure gradient that separates these two flow regimes. At small enough pressure gradient, the capillary forces dominate. If one or both of the immiscible fluids percolate, the volumetric flow rate will then depend linearly on the pressure gradient as the interfaces will not move. If none of the fluids percolate, there will be a minimum pressure gradient threshold to mobilize the interfaces and thereby get the fluids moving. We now imagine a core sample of a given size. The question we pose is what happens to the crossover pressure gradient that separates the power-law regime from the high-flow rate linear regime and the threshold pressure gradient that blocks the flow at low pressure gradients when the size of the core sample is increased. Based on analytical calculations using the capillary bundle model and on numerical simulations using a dynamical pore-network model, we find that the crossover pressure gradient and the threshold pressure gradient decrease with two distinct power laws in the size. This means that the power-law regime disappears in the continuum limit where the pores are infinitely small compared to the sample size.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"151 6","pages":"1295 - 1311"},"PeriodicalIF":2.7,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11242-024-02073-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140300505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stochastic Periodic Microstructures for Multiscale Modelling of Heterogeneous Materials 用于多尺度异质材料建模的随机周期微结构

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-03-19 DOI: 10.1007/s11242-024-02074-z

Evan John Ricketts

{"title":"Stochastic Periodic Microstructures for Multiscale Modelling of Heterogeneous Materials","authors":"Evan John Ricketts","doi":"10.1007/s11242-024-02074-z","DOIUrl":"10.1007/s11242-024-02074-z","url":null,"abstract":"<p>Plurigaussian simulation is a method of discrete random field generation that can be used to generate many complex geometries depicting real world structures. Whilst it is commonly applied at larger scales to represent geological phenomena, the highly flexible approach is suitable for generating structures at all scales. Here, an extension of plurigaussian simulation to periodic plurigaussian simulation (P-PGS) is presented, such that the resulting fields are periodic in nature. By using periodic Gaussian random fields as components of the method, periodicity is enforced in the generated structures. To substantiate the use of P-PGS in capturing complex heterogeneities in a physically meaningful way, the pore-scale microstructure of cement paste was represented such that its effective properties can be calculated through a computational homogenisation approach. The finite element method is employed to model the diffusion of heat through the medium under dry and saturated pore conditions, where numerical homogenisation is conducted to calculate the effective thermal conductivity of the medium. Comparison of the calculated values with experimental observations indicated that the generated microstructures are suitable for pore-scale representation, given their close match. A maximal error of 1.38% was observed in relation to the numerically determined effective thermal conductivity of mortar paste with air filled pores, and 0.41% when considering water filled pores. As the assumption of a periodic domain is often an underlying feature of numerical homogenisation, this extension of plurigaussian simulation enables a path for its integration into such computational schemes.</p>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"151 6","pages":"1313 - 1332"},"PeriodicalIF":2.7,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11242-024-02074-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140170136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Transition from Darcy to Nonlinear Flow in Heterogeneous Porous Media: I—Single-Phase Flow 异质多孔介质中从达西流到非线性流的过渡：I - 单相流

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-03-14 DOI: 10.1007/s11242-024-02070-3

Sepehr Arbabi, Muhammad Sahimi

{"title":"The Transition from Darcy to Nonlinear Flow in Heterogeneous Porous Media: I—Single-Phase Flow","authors":"Sepehr Arbabi, Muhammad Sahimi","doi":"10.1007/s11242-024-02070-3","DOIUrl":"10.1007/s11242-024-02070-3","url":null,"abstract":"<div><p>Using extensive numerical simulation of the Navier–Stokes equations, we study the transition from the Darcy’s law for slow flow of fluids through a disordered porous medium to the nonlinear flow regime in which the effect of inertia cannot be neglected. The porous medium is represented by two-dimensional slices of a three-dimensional image of a sandstone. We study the problem over wide ranges of porosity and the Reynolds number, as well as two types of boundary conditions, and compute essential features of fluid flow, namely, the strength of the vorticity, the effective permeability of the pore space, the frictional drag, and the relationship between the macroscopic pressure gradient <span>({varvec{nabla }}P)</span> and the fluid velocity <b>v</b>. The results indicate that when the Reynolds number Re is low enough that the Darcy’s law holds, the magnitude <span>(omega _z)</span> of the vorticity is nearly zero. As Re increases, however, so also does <span>(omega _z)</span>, and its rise from nearly zero begins at the same Re at which the Darcy’s law breaks down. We also show that a nonlinear relation between the macroscopic pressure gradient and the fluid velocity <b>v</b>, given by, <span>(-{varvec{nabla }}P=(mu /K_e)textbf{v}+beta _nrho |textbf{v}|^2textbf{v})</span>, provides accurate representation of the numerical data, where <span>(mu)</span> and <span>(rho)</span> are the fluid’s viscosity and density, <span>(K_e)</span> is the effective Darcy permeability in the linear regime, and <span>(beta _n)</span> is a generalized nonlinear resistance. Theoretical justification for the relation is presented, and its predictions are also compared with those of the Forchheimer’s equation.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"151 4","pages":"795 - 812"},"PeriodicalIF":2.7,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11242-024-02070-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanisms of Pore-Clogging Using a High-Resolution CFD-DEM Colloid Transport Model 利用高分辨率 CFD-DEM 胶体输送模型分析孔隙积水机理

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-03-13 DOI: 10.1007/s11242-024-02072-1

Shitao Liu, Igor Shikhov, Christoph Arns

{"title":"Mechanisms of Pore-Clogging Using a High-Resolution CFD-DEM Colloid Transport Model","authors":"Shitao Liu, Igor Shikhov, Christoph Arns","doi":"10.1007/s11242-024-02072-1","DOIUrl":"10.1007/s11242-024-02072-1","url":null,"abstract":"<div><p>Colloidal transport and clogging in porous media is a phenomenon of critical importance in many branches of applied sciences and engineering. It involves multiple types of interactions that span from the sub-colloid scale (electrochemical interactions) up to the pore-scale (bridging), thus challenging the development of representative modelling. So far published simulation results of colloidal or particulate transport are based on either reduced set of forces or spatial dimensions. Here we present an approach enabling to overcome both computational and physical limitations posed by a problem of 3D colloidal transport in porous media. An adaptive octree mesh is introduced to a coupled CFD and DEM method while enabling tracking of individual colloids. Flow fields are calculated at a coarser scale throughout the domain, and at fine-scale around colloids. The approach accounts for all major interactions in such a system: elastic, electrostatic, and hydrodynamic forces acting between colloids, as well as colloids and the collector surface. The method is demonstrated for a single throat model made of four spherical segments, and the impact of clogging is reported in terms of the evolution of the critical path diameter for percolation and permeability. We identified four stages of clogging development depending on position and time of individual colloid entrapment, which in turn correlates to a cluster evolution and local transport.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"151 4","pages":"831 - 851"},"PeriodicalIF":2.7,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11242-024-02072-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140124605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microscopic Localisation of Hydrophilically Oriented Pore Bodies and Throats in Hydrophobised Porous Materials 亲水性多孔材料中亲水方向孔体和孔口的显微定位

IF 2.7 3区工程技术

Transport in Porous Media Pub Date : 2024-03-08 DOI: 10.1007/s11242-024-02069-w

Daan Deckers, Yanshen Zhu, Erin Koos, Hans Janssen

{"title":"Microscopic Localisation of Hydrophilically Oriented Pore Bodies and Throats in Hydrophobised Porous Materials","authors":"Daan Deckers, Yanshen Zhu, Erin Koos, Hans Janssen","doi":"10.1007/s11242-024-02069-w","DOIUrl":"10.1007/s11242-024-02069-w","url":null,"abstract":"<div><p>Internal insulation of the building envelope is a prime topic in building physics, due to the risk of moisture problems that this technique entails. As a remedy to these problems, the application of a water-repellent agent, which reduces the amount of absorbed wind-driven rain, has become popular in recent years. When such an agent is applied on a building material, it penetrates the pore network of the material, hereby attaching itself to the pore surfaces and rendering them hydrophobic. It is generally believed that some smaller pores can remain hydrophilic due to the inability of the agent to enter. An in-depth microscopic investigation towards these hydrophilic pores, however, has never been performed. Since direct visualisation of the polymer chains was proven impossible, this paper locates the hydrophilic (parts of) pores in a material, hydrophobised with 3 different water-repellent agents, by imaging the moisture storage at pore level using X-ray computed tomography images at different stages of the desaturation process. While completely hydrophilic pore bodies and throats are not found in the studied material, water storage remains possible in hydrophilic corners of hydrophobised pore bodies and throats. These corner islands are less present than in hydrophilic media and do not form a continuous liquid flow path. Therefore, they provide possible locations for little moisture storage but do not contribute notably to moisture flow.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"151 4","pages":"773 - 793"},"PeriodicalIF":2.7,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140075603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0